yes, before i installed vlc player, i already updated the codec by k-lite codec pack. actually, it happened when my computer was infected by malware, what i did is i uninstall all my web browser, uninstall all unwanted programs installed, i used ccleaner to delete missing file on registry, then i re-install web browser such as google chrome and mozilla firefoz. Then when i tried to watch a movie which i downloaded online, the problem occurs. I tried tweaking, wise cleaner, ms fixit and other utilities but to no avail.
actually , i don't like other media player. As much as possible, i will use my Windows media player as my default video player and itunes for audio. I will try the link that you provided and i give you feedback asap.
Thanks,
Ronald